Construction of ships&#39; hulls.



F. S. PENDLETUN.

CONSTRUCTION OF SHIPS HULLS.

APPLICATION FILED JULY 25.1917..

Patented. Feb. 5, 1918.

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CONSTRUCTION OF SHIPS HULLS.

APPLICATION HLED JULY 25,1917. 1,255,?8%. Patented Feb. 55,1918.

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CONSTRUCHON 0F SHIPS HULLS.

APPUCATION FILED JULY 25, I917.

Patented Feb. 5, 1918.

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UNITE @IAIE@ PATEI TT FIELDS S. PENDLETON, OF BROOKLYN, NEW YORK.

CONSTRUCTION OF SHIPS HULLS.

' ships hulls from the combination of wood and metal.

Among the objects of the invention is to construct a ships hull easily and rapidly and at the same time provide for ample rigidity and strength. i

- Another object of the invention is to improve the interior construction of a ships amount of storage space provided and the facilities for access to all parts of the hull.

With the foregoing and otherobjects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designatethe same parts m the several views and in which Figure 1 is a side elevation of'a hull made in accordance with this invention, the middle portion being broken away to conserve space and with a portion of the side broken away to disclose the interior arrangement of the diagonal reinforcing straps.

Fig. 2 is a plan view of the same with a portion. broken away to disclose the transverse metal deck beams. i

Fig. 3 is a vertical transverse section showing more particularly the manner .Qf construction of the hull and the interior spacing. r a Fig. 4: is a vertical longitudinal section corresponding to the line4-4of Fig. 2; and :"Fig. 5is a detail perspective ;view corressponding to the upper right hand portion of Fig. 3 below the waist line ;From what has been indicated above; it will beunderstood thatthis ship design is Specification of Letters Patent.

Patented Feb. 5, 1918.

Application filed July 25, 1917. 7 Serial No. 182,766.

intended for use in the rapid and cheap construction of ships hulls in which the elements of strength and durability are associated favorably with maximum carrying capacity. I wish it to be understood, however, that I am not especially concerned with the exact type or form of hull indicated by the accompanying drawings, reserving the right to embody any or all of the features of the improved design in many different types of hulls in practice.

At 10 I indicate the hull as a whole haw/=- ing a stem 11, keel 12 and stern 13. Any suitable number of decks may be provided butI have indicated only upper and lower decks 14 and 15 each being provided with suitable hatches such as indicated at 16 and 17, the upper hatches each being provided with a coaming 18.

I refer now particularly to the construction of the hull. See Fig. 3. The main wooden frame structure includes a series of transverse ribs 19 of heavy construction across the bottom above the keel 12 and of somewhat lighter construction along the sides and merging at their upper ends on opposite sides of the hull into the waist 20. These ribs are arranged relatively close together from how to stern and occupy substantially vertical transverse planes. Extending longitudinally of the hull, and supported upon the heavy bottom portions of these ribs are heavy and approximately rectangular stringers 21. Upon the central. stringer is supported and secured a heavy metal eye beam keelson. 22, and means for securing the keelson to the central stringer 21 including a series of'metal fasteners 23 extending through the base flange of the keelson thence down through the stringer 21', the ribs, and into the keel. The central stringer 21 is additionally secured to the ribs by means ofan angle bar 24 upon one side, this angle bar being secured to the stringer by means of horizontal fasteners 25. Fastened to the keelson are angle-iron knees 22 22 at the bow and stern, respectively.

On opposite sides of the longitudinal center of the bottom or the stringer 21? the stringers may be spaced somewhat as indicated at 26 but outwardly thereof and around the bilges 27 the stringers are arranged firmly and compactly. Along each ed bilge portion of the ribs. Strong metal fasteners 29 pass directly through the stringer members 23 to the Outside of the hull. The character of these metal fasteners may vary somewhat under different circumstances but I prefer to use galvanized metal throughout, which enables these fasteners to be headed at one end and provided with nuts at the other or else adapted to be clenched over on the inside of the hull. The stringers 30 along the bottom and adjacent to the bilge stringers 28 may constitute the floor of the hull but extending thence inwardly and over the spaced stringers 21 I provide preferably three inch planking 31 to constitute the main floor, this being applied after the main fasteners are used to secure the ribs, stringers and outside planking together. The bilge portions of the bottom are provided with filler blocks 32 between the diagonally arranged stringers 28 and the curved portions of the ribs making an unusually stiff and strong bilge structure with the bolts 29 passing through all of the parts. Each of the decks 14 and 15 comprises transverse beams 33 supported at their outer ends upon angle bars 3 1, one flange of which extends vertically on the inner face of the upper ends of the ribs while the other flange of each angle bar 34 projects inwardly toward the longitudinal center of the hull forming a direct support for the ends of the metal beams 33. A shelf 35 is securely attached by means of bolts 36 beneath the beams 33 and assists to strengthen this part of the hull and to support the beams. Each of the shelves is provided on its inner edge with an angle beam belt 37 extending entirely around the inside of the vessel and held by the same bolts 36, the waterway 38 lying along the upper sides of the outer ends of the beams. Suitable wooden planking 39 is arranged longitudinally of the ship upon the beams 33.

40 indicates a stanchion made mainly of hard wood and supported upon the metal keelson 22, the upper edge of the stanchion carrying an I-beam 41 on which in turn the central portions of the transverse beams 33 are supported. Between the two decks 14 and 15 is another vertical longitudinal stanchion 42.

I now call attention particularly to Fig. 1 indicating at 4:3 diagonally arranged strong galvanized metal straps extending from a. heavy belt 44 extending along the wales or sides of the hull. The straps 13 are secured at their upper ends to the belt 44: and extend thence downwardly in diagonal lines forwardly and rearwardly across the bottom toward the strakes 15 adjacent to the keel.

These straps aresecured together where they intersect one another and are also arranged close against the outeredges or surfaces of the ribs 19 'making therewith an unusually strong rigid structure of minimum weight. The outside planking i6 is secured longitudinally of the shipon the outside of the, net work of the straps 43. l

I also call attention to the strong rigid bracing associated with the main stanchion 10 which bracing comprises diagonal inter; secting straps a7 connected at their upper ends to the bottom of the eye beam a1 and the angle bar as supporting the same upon the stanchion and at their lower ends the strapsl7 aresecured to the angle bar 2% at the keelson. At the intermediate.portions they are secured to the angle bar 19 atthe bottom of the stanchion. Fastened to the ends of the beams 11 and 4C8 are angle-iron knees 41* and 4:1 at the bow and stern, respectively. V

As shown in Fig. 5, in detail, each of the metal fasteners extending from the outside of the hull has its head countersunk at 50 and the cavity formed thereby is subse quently plugged as shown at 51 in any suitable manner to make a smooth exterior finish.

.I claim:

1. In a ships hull, the combination of a keel and a plurality of strakes extending along opposite sides of the same, of a series of ribs arranged upon andtransversely of said keel and strakes, a heavy central. stringer extending longitudinally of the ship across the ribs, a metal I-beam keelson supported upon the central stringer, an angle bar secured to one side of the stringer and supported upon the ribs, auxiliary stringers on opposite sides of the central stringer, fastening devices passing through the stringers, ribsand keel, certain of said fasteners passing 'throughsaid angle bar, other-of said fasteners passing'through the bottom of the keelson securing it in place,

a stanchion supported upon the keelson, and metal bracing straps associated with the stanchion and secured at their lower ends to said angle bar.'

2; In a ships hull, the combination with a keel, strakes extending along the'keel at opposite sides thereof, transverse ribs supported upon the keel and str'akes and a series of stringers extending longitudinally of the bottom of the hull upon the ribs,

of a keelson in the form of a metal I-beam supportedupon the central stringer, a stanchion supported upon the keelson, a plurality of metal straps secured to the top of the stanchion extending thence diagonally across one another, and fastening devices securing the lower portions of the straps to the bottom of the stanchion and between stringers arranged in a diagonal plane spancertain of said stringers. ning each rounded bilge portion, filler blocks 3. In a ships hull, the combination of a filling the space between the diagonal series 10 series of transversely arranged parallel ribs of stringers and the rounded bilge portions 5 having rounded bilge portions, a series of of the ribs, and metal fasteners passing longitudinal stringers supported upon the through the stringers, ribs and filler block. bottom portion of the ribs; a series of FIELDS S. PENDLETON.

Uopiea 01! this patent may be obtained for five cents each, by addressing the Commissioner oi Patents, W Washington, D. G. 

